Purchased this as a cover for a silk duvet my husband and I purchased for our silk filled duvet. The quality is excellent -- it feels crisp and cool like hotel bedding and is very white in color. I love the closure (buttons that close inwards) and the interior corner ties to keep the duvet in place. The only issue is that the King cover is slightly too wide for our King duvet. I haven't measured to see which is the off-size, but it's not a huge problem. Our duvet is a lightweight one, since we live in a warm climate year round, so I think a heavier weight duvet would fill it a bit better.